Category Archives: How to

Can AAVs be installed externally / outside?

A commonly asked question is whether Air Admittance Valves (AAVs) can be installed outside. In the UK Part H of the Building Regulations 2010 (clause 1.33) states that “Air admittance valves should not be used outside buildings…” Reasons for this … Continue reading

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The Studor Airflow Calculator

Drainage Design Calculations for Designers, Architects and Engineers The Studor Airflow Calculator is a step-by-step formula based on the European standard EN12056-2. It assists with the calculation of airflow and wastewater flow per second when considering the design of a building’s … Continue reading

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How to Use the Airflow Calculator

Instructions The following set of instructions outline how to use the Studor web-based and Airflow Calculator Apps. The input fields are highlighted in pink for the web-based version and are white in the App. Select the system tab: either System … Continue reading

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How to Avoid a Roof Penetration

Reduce Thermal Heat Loss with the Studor Maxi-Vent With modern improved building insulation methods and the importance of reducing thermal heat loss, not compromising the roof’s integrity with penetrations (such as vent pipes) is of great benefit – this is where … Continue reading

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How-to: Ventilate a Septic Tank

Smelly Septic Tanks and Septic Odours Unless you are on mains drainage, your septic tank collects all the wastewater from your house. It has no moving parts and just sits there quietly in your garden or yard. Its presence should be … Continue reading

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The Airflow Calculator

Website Based Facility Calculating EN10256-2:2000 Requirements. Do you use the Studor Airflow Calculator? This is a simple step-by-step formula that assists with the calculations of airflow and waste water flow when designing a drainage system. The Airflow Calculator provides a … Continue reading

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Problem Solving with the Patented P.A.P.A.

Installing P.A.P.A. Solves Penthouse Problems at London Apartments AAVs are well known for their problem solving abilities, a reason why every plumber should keep one or two Studor Mini-Vents and Maxi-Vents in their van.  However, the P.A.P.A. can also play … Continue reading

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